Australia flanker Dean Mumm was fortunate to escape a red card for a dangerous tackle on Tadhg Furlong, while Bernard Foley was sin-binned late on for a challenge on Devin Toner.

Ireland wound up with replacement scrum-half Kieran Marmion on the wing and Joey Carbery at full-back, but still produced a stirring victory over the Wallabies.

Joe Schmidt's men shrugged off all their injury concerns to beat New Zealand, South Africa and Australia all in the same year - the first northern hemisphere side to complete the feat since England 13 years ago.

Ireland ripped into Australia from the off, but wasted three ideal platforms in the visitors' 22 after punting kickable penalties to the corner.